Goods return rule?

ROHIT (EXCISE ASSIT) (34 Points)

22 January 2011  

HI All

I have work with Glass manufacture company. our company sales toughen glass & Annealed Glass. but when sales glass return to our company for rework/ replacesment. Then we are take cenvat credit this glass? or only taken credit rework Glass? there have any document Req from party? if yes? which? There are any Excise rules? if one glass come for rework \ replacement then how many days they will return to party? if any more information about this topic Plz share with me.........